function MM_findObj(n, d) { 
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function tmt_findObj(n){
	var x,t; if((n.indexOf("?"))>0&&parent.frames.length){t=n.split("?");
	x=eval("parent.frames['"+t[1]+"'].document.getElementById('"+t[0]+"')");
	}else{x=document.getElementById(n)}return x;
}

function MM_showHideLayers() { 
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  if(document.getElementById){
       for (i=0; i<(args.length-2); i+=3){ 
           obj=tmt_findObj(args[i]);v=args[i+2];
           v=(v=='show')?'visible':(v='hide')?'hidden':v;
           if(obj){
                obj.style.visibility=v;
                
                //keep current sub menu visible
                var qs = getQueryVariable("tm");
                if('nav0'+qs == args[i]){
                    obj.style.visibility='visible';
                }
           }
       }
   } else{
      for (i=0; i<(args.length-2); i+=3){
           if ((obj=MM_findObj(args[i]))!=null) { 
               v=args[i+2];
                    if (obj.style) { 
                        obj=obj.style;
                         v=(v=='show')?'visible':(v='hide')?'hidden':v; 
                     }
                obj.visibility=v; 
                
                //keep current sub menu visible
                var qs = getQueryVariable("tm");
                if('nav0'+qs == args[i]){
                    obj.visibility='visible';
                }
            }
      }
   }
   
   function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
  //alert('Query Variable ' + variable + ' not found');
}
}